diff --git a/pollination/annual_daylight/_prepare_folder.py b/pollination/annual_daylight/_prepare_folder.py
index 0118802..5ea74dd 100644
--- a/pollination/annual_daylight/_prepare_folder.py
+++ b/pollination/annual_daylight/_prepare_folder.py
@@ -6,10 +6,11 @@
 from pollination.honeybee_radiance.sky import CreateSkyDome, CreateSkyMatrix
 from pollination.honeybee_radiance.octree import CreateOctreeStatic
 from pollination.honeybee_radiance.grid import SplitGridFolder
+from pollination.honeybee_radiance.study import StudyInfo
 
 # input/output alias
 from pollination.alias.inputs.model import hbjson_model_grid_input
-from pollination.alias.inputs.wea import wea_input_timestep_check
+from pollination.alias.inputs.wea import wea_input
 from pollination.alias.inputs.north import north_input
 from pollination.alias.inputs.grid import grid_filter_input, \
     min_sensor_count_input, cpu_count
@@ -66,10 +67,16 @@ class AnnualDaylightPrepareFolder(GroupedDAG):
     wea = Inputs.file(
         description='Wea file.',
         extensions=['wea', 'epw'],
-        alias=wea_input_timestep_check
+        alias=wea_input
     )
 
-    @task(template=CreateSunMtx)
+    timestep = Inputs.int(
+        description='Input wea timestep. This value will be used to compute '
+        'cumulative radiation results.', default=1,
+        spec={'type': 'integer', 'minimum': 1, 'maximum': 60}
+    )
+
+    @task(template=CreateSunMatrix)
     def generate_sunpath(self, north=north, wea=wea):
         """Create sunpath for sun-up-hours."""
         return [
@@ -156,6 +163,15 @@ def parse_sun_up_hours(self, sun_modifiers=generate_sunpath._outputs.sun_modifie
             }
         ]
 
+    @task(template=StudyInfo)
+    def create_study_info(self, wea=wea, timestep=timestep):
+        return [
+            {
+                'from': StudyInfo()._outputs.study_info,
+                'to': 'results/study_info.json'
+            }
+        ]
+
     model_folder = Outputs.folder(
         source='model', description='input model folder folder.'
     )
diff --git a/pollination/annual_daylight/entry.py b/pollination/annual_daylight/entry.py
index 0f3b251..3ffc72c 100644
--- a/pollination/annual_daylight/entry.py
+++ b/pollination/annual_daylight/entry.py
@@ -3,7 +3,7 @@
 
 # input/output alias
 from pollination.alias.inputs.model import hbjson_model_grid_input
-from pollination.alias.inputs.wea import wea_input_timestep_check
+from pollination.alias.inputs.wea import wea_input
 from pollination.alias.inputs.north import north_input
 from pollination.alias.inputs.radiancepar import rad_par_annual_input, \
     daylight_thresholds_input
@@ -78,7 +78,13 @@ class AnnualDaylightEntryPoint(DAG):
     wea = Inputs.file(
         description='Wea file.',
         extensions=['wea', 'epw'],
-        alias=wea_input_timestep_check
+        alias=wea_input
+    )
+
+    timestep = Inputs.int(
+        description='Input wea timestep. This value will be used to compute '
+        'cumulative radiation results.', default=1,
+        spec={'type': 'integer', 'minimum': 1, 'maximum': 60}
     )
 
     schedule = Inputs.file(
@@ -106,7 +112,7 @@ class AnnualDaylightEntryPoint(DAG):
     @task(template=AnnualDaylightPrepareFolder)
     def prepare_folder_annual_daylight(
         self, north=north, cpu_count=cpu_count, min_sensor_count=min_sensor_count,
-        grid_filter=grid_filter, model=model, wea=wea
+        grid_filter=grid_filter, model=model, wea=wea, timestep=timestep
         ):
         return [
             {